Completed Tasks show as 'Overdue' (still)

In the following post, a user asks, "Why do completed tasks show as 'Overdue' when displaying by Tag and sorted by Due Date?"

This still happens and I found it very confusing. Would it be possible to put a checkbox or something that allows one to filter out the completed tasks? I know I can create a search myself, but I thought I'd echo that I'd be interested in something built in.